However, in the age of blogging, it is increasingly common for advocates and "experts" everywhere to take to the internet and offer both solicited and unsolicited opinions on any number of topics. As such, it should come as no surprise that the practice of rating and offering advice on choosing a particular escort has extended to the web. Customers offer ratings regarding the services of certain escorts and
agencies as a public reference for others to browse. Of course, such sites are potentially victim to the usual difficulties of anonymous internet postings, as agencies and escorts can plant positive comments to falsely tout themselves. On the flip side, customers have been known to blackmail escorts with the threat of giving a bad rating unless extra sexual services were offered.